I have the following running on my Mac:

  • OSX Yosemite (10.10.2)
  • Java version 8 update 31
  • Safari 8.0.4

I am unable to run any Java applet on Safari. I have added multiple sites to the exception lists (in System Preferences -> Java Control Panel -> Security), but it has not changed anything.

I also don't see anything related to Java in Safari preferences:

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When I try to run a Java applet, it says, Error. Click for details., and when I do, this is what I get:

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I've tried Chrome and Firefox as well, and this is the common error they give me:

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Whatever I do, I cannot allow for Java applets to be run on any browser.

  • Did you try adding to the exception list under System Preferences -> Java -> Security ? – Erikster Mar 18 '15 at 23:12
  • Didn't work. It asked me permission to run it, I said ok, and then it didn't load again. It says Error, click for details again. But this time, the error is NullPointerException: There was an error while executing the application. Click "Details" for more information. – sodiumnitrate Mar 18 '15 at 23:42
  • 1
    Huh. NullPointerException sounds like an issue with the actual Java program you're trying to run. Do you have an IT group you can contact? – Erikster Mar 18 '15 at 23:44
  • Ok, tried it with another java applet from another site. It worked, but safari keeps on crashing. Works perfectly well with chrome, though. – sodiumnitrate Mar 19 '15 at 0:05
  • To Safari, Java counts as a plug-in. So you may need to click the "Website Settings…" button for plug-ins, find Java in the list of plug-ins, and add websites to the whitelist. – Spiff Mar 19 '15 at 0:48

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